Navigation Links
Acid water in East Java threatens biodiversity and local welfare

She went to investigate the local ecology. Yet during her field work on East Java, Dutch biologist Ansje Lohr became increasingly involved with the local residents, whose harvests failed and whose health was deteriorating due to extremely acidified and polluted river water. Lohr has recently received a second grant to help the Javanese population.

Lohr's Ph.D. study was part of a larger project on the Ijen Crater Lake on East Java, Indonesia. This crater lake is the largest collection of volcanic water in the world and is extremely acidic (pH 0.1). The acidic water slowly seeps away, and despite dilution by two tributaries in the area the pH of the river water remains very low. This water is used for agricultural and household purposes, which sometimes leads to the rice harvests failing. The very high aluminium content of the water - associated with the acidity - also plays an important role in this. Other elements such as fluorine, in the form of fluoride, form a direct threat for public health. The levels are not only alarmingly high in the river water but also in the groundwater and drinking water wells.

Biodiversity

Within the large project scientists studied the geochemical and hydrological processes as well as the health risks. Ansje Lohr investigated the ecological effects of the acidic water. As well as having a harmful effect on the well-being of the local population, it adversely affects the biodiversity.

Lohr sampled the water at various locations. She observed that the neutral river water contained normal aquatic fauna, but that only mosquito larvae could survive the extremely acidic water. The diversity of microorganisms and algae was also very low. The inhibited breakdown of organic material was another ecological effect measured. Lohr established this using packs containing jati and bamboo leaves, which she suspended in the river at various locations. She determined the loss dry matter over a period of several m onths.

Solution

According to Lohr, one possible solution for the acidification problem is simply to prevent the crater water from mixing with both neutral rivers. She believes that this could be realised by channelling the flow of acidic water from the crater into the sea, which with its enormous water surface would not suffer any detrimental effects due to this small quantity of acidic water. Lohr wants to hold discussions with local authorities, other researchers and companies in order to arrange such a diversion or another solution. The biologist recently received a dissemination grant from NWO-WOTRO to support this.


'"/>

Source:Netherlands Organization for Scientific Research


Related biology news :

1. Anti-bacterial additive widespread in U.S. waterways
2. Unprecedented water level rise in Somalia
3. Microbial fuel cell: High yield hydrogen source and wastewater cleaner
4. Survey finds silver contamination in North Pacific waters
5. Researchers discover underwater volcano
6. Too much water may be as dangerous as too little during long-distance athletic events
7. Radio-tracking associated with dramatic shift in water vole sex ratio
8. Major new UNC-based drinking water study suggests pregnancy fears may be overstated
9. Newly discovered genetic disease sheds light on bodys water balance
10. Beetle-inspired switch uses water for bonding
11. UNC computer, marine scientists collaborate to predict flow of toxic waters from Katrina
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/1/2016)... , February 1, 2016 ... advancements to drive global touchfree intuitive gesture control market ... --> Rising sales of consumer electronics coupled with ... control market size through 2020 ... electronics coupled with new technological advancements to drive global ...
(Date:1/25/2016)... BLUE BELL, Pa. , Jan. 25, 2016   Unisys ... facial recognition system at John F. Kennedy (JFK) International Airport, ... and Border Protection (CBP) identify imposters attempting to enter ... or do not belong to them. pilot testing ... rolled out initially at three terminals at JFK during January 2016. ...
(Date:1/20/2016)... A market that just keeps on growing. ... explosion in genomics knowledge. Learn all about it in ... of dynamic trends are pushing market growth and company ... pharmacogenomics - pathogen evolution - next generation sequencing - ... understanding of the role of genetic material in Disease ...
Breaking Biology News(10 mins):
(Date:2/8/2016)... 8, 2016  Diplomat Pharmacy, Inc. (NYSE: DPLO) announced today that its new website has gone ... story-driven, knowledge-based and mobile-friendly. Visit the new site: ... ... ... "The goal was to reimagine the ...
(Date:2/5/2016)... MANASSAS, Va. , Feb. 5, 2016 ... organization, is poised to assist the medical and life ... concerns around Zika Virus infection.   CDC ... --> Zika virus is a single-stranded ... also includes the West Nile, Dengue and Chikungunya Viruses. ...
(Date:2/5/2016)... SYDNEY , Feb. 5, 2016 Australian-US drug ... ), announced today the appointment of a new Chairman, Mr ... Bryce Carmine , effective immediately. James Garner ... an Executive Director and former Acting CEO, Mr Iain ... a Non-Executive Director. --> James Garner , has ...
(Date:2/4/2016)... (PRWEB) , ... February 04, 2016 , ... ... latest GC-MS and triple quad LC-MS, host live demos and poster sessions, and ... conference and exhibition. The conference takes place March 6 to 10 at the ...
Breaking Biology Technology: